Question

Solve the following (Any 2)
0 7x+6y=17 and Gxt ly = 10 what is the
of x-y?
value​

Answer 1

Answer: 7

Explanation:

Given

7x + 6y = 17 equation i)

6x + 7y = 10 equation ii)

Now subtract equation ii) from equation i)

(7x + 6y) - (6x + 7y) = 17 - 10

7x + 6y - 6x - 7y = 7

7x - 6x + 6y - 7y = 7

x - y = 7

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